topic 5505 ASA GRE in Network Security

5505 ASA GRE

biplobkhan — Mon, 11 Mar 2019 22:22:51 GMT

ASA 5505 support GRE Tunnel ? version : 8.0

Regards

Biplob

5505 ASA GRE

Richard Burts — Thu, 02 Feb 2012 04:51:07 GMT

Biplob

I have done a quick search through documentation for ASA (not only 8.0 but up through the most current versions) and I find that the closest that ASA comes to processing GRE is in its support for PPTP protocol (which uses GRE).

So I believe that the answer to your question whether ASA supports GRE is no.

HTH

Rick

5505 ASA GRE

biplobkhan — Thu, 02 Feb 2012 05:01:49 GMT

Hi Rick

I am not Clear. ASA 5505 does support GRE Tunnel ?

when I give command in 5505 : interface tunnel 100 then error back.

Regards

Biplob

5505 ASA GRE

ajay chauhan — Thu, 02 Feb 2012 06:35:23 GMT

He simply mean what you are trying to do on ASA is not supported

5505 ASA GRE

Kishore Chennupati — Thu, 02 Feb 2012 08:15:37 GMT

Hi,

ASA is a fundamentally a security appliance. So it doesnt support a lot of general IP routing features like PBR, dual default routes. and wide range of other things. ASA's dont support GRE as you need to create a Tunnel interface in order to run GRE. In fact you cant even create a loopback interface on a ASA.

The simple solution would be to plug a router into the ASA. choose a 2800 or a 1921 or some router like that and creat the GRE tunnel on that and just allow IP protocol 47(GRE) on the firewall to pass through..

Please rate and mark the question as answered if this helps.

Hope this helps

Kishore